Datasheet LTC1594L, LTC1598L (Analog Devices) - 5

LTC1594L/LTC1598L
W U TYPICAL PERFORMANCE CHARACTERISTICS Change in Offset Change in Linearity vs Reference Voltage Change in Offset vs Temperature vs Reference Voltage
3.0 0.20 0.50 ) TA = 25°C V T CC = 2.7V A = 25°C REF V 0.45 CC = 2.7V V V 0.15 REF = 2.5V CC = 2.7V × V 2.5 fCLK = 200kHz fCLK = 200kHz 0.40 fCLK = 200kHz fSMPL = 10.5kHz f f 0.10 SMPL = fSMPL(MAX) SMPL = 10.5kHz 0.35 2.0 0.05 0.30 1.5 0 0.25 0.20 – 0.05 1.0 0.15 CHANGE IN OFFSET (LSB) – 0.10 CHANGE IN LINEARITY (LSB) 0.10 0.5 – 0.15 0.05 CHANGE IN OFFSET (LSB = 1/4096 0 – 0.20 0 0.5 1.0 1.5 2.0 2.5 3.0 0 10 20 30 40 50 60 70 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 REFERENCE VOLTAGE (V) TEMPERATURE (°C) REFERENCE VOLTAGE (V) 1594L/98L G04 1594L/98L G05 1594L/98L G06
Change in Gain Effective Bits and S/(N + D) vs Reference Voltage Differential Nonlinearity vs Code vs Input Frequency
–10 1 12 74 S/(N + D) (dB) TA = 25°C T – 9 A = 25°C 11 68 VCC = 2.7V VCC = 2.7V 10 62 – 8 fCLK = 200kHz VREF = 2.5V fSMPL = 10.5kHz 0.5 fCLK = 200kHz 9 56 – 7 8 50 – 6 7 – 5 0 6 – 4 5 4 – 3 CHANGE IN GAIN (LSB) – 0.5 3 TA = 25°C – 2 2 VCC = 2.7V – 1 EFFECTIVE NUMBER OF BITS (ENOBs) fCLK = 200kHz 1 f DIFFERENTIAL NONLINEARITY ERROR (LSB) SMPL = 10.5kHz 0 –1 0 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 0 512 1024 1536 2048 2560 3072 3584 4096 1 10 100 REFERENCE VOLTAGE (V) CODE INPUT FREQUENCY (kHz) 1594L/98L G07 1594L/98L G09 1594L/98L G08
Spurious Free Dynamic Range vs Input Frequency S/(N + D) vs Input Level Frequency Response
100 0 80 TA = 25°C 90 10 70 VCC = 2.7V V 80 REF = 2.5V 20 f 60 IN = 1kHz 70 fSMPL = fSMPL(MAX) 30 60 50 40 50 50 40 40 60 30 30 ATTENUATION (%) 70 (MUX + ADC) T 20 T A = 25°C A = 25°C 20 V 80 V CC = 2.7V CC = 2.7V V V 10 REF = 2.5V SPURIOUS-FREE DYNAMIC RANGE (dB) 10 REF = 2.5V 90 f SIGNAL-TO-NOISE PLUS DISTORTION (dB) f SMPL = fSMPL(MAX) SMPL = fSMPL(MAX) 0 100 0 1 10 100 – 45 – 40 – 35 – 30 – 25 – 20 – 15 – 10 – 5 0 1k 10k 100k 1M 10M INPUT FREQUENCY (kHz) INPUT LEVEL (dB) INPUT FREQUENCY (Hz) 1594L/98L G10 1594L/98L G12 1594L/98/ G11 15948lfb 5